if for any `2*2` square matrix A , `A(adjA)=[[8 , 0] , [0 , 8]]` then write the value of `det.A`

If A is a square matrix such that A(a d j\ A)=[(5, 0, 0),(0, 5, 0),(0, 0, 5)] , then write the value of |a d j\ A| .

If A is square matrix of order, 3, with |A| = 4, then write the value of |-2A|.

If A is square matrix of order 3 matrix, |A| != 0 and |3A|=k|A| , then write the value of k .

If A is an square matrix of order 3 such that |A|=2 , then write the value of |(a d j\ A)| .

If A is a square matrix of order 3 such that |A|=2 , then write the value of |(a d jA)|

If A is any square matrix such that A= [ ( 2, 3) , (5,8)] then find A+I

If A is a square matrix of order 2 and |A| = 8 then find the value of | adj(A)|

If A is a square matrix of order nxxn such that |A|=lambda , then write the value of |-A| .

If A is a square matrix such that |A| = 2 , write the value of | AA^T|

If int_0^a3x^2dx=8,\ write the value of a .